哪位大佬看看这么写对吗
<!DOCTYPE html>
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=gbk"/>
<script type="text/javascript">
function NewWindow(){
window.open('http://www.imocc.com/','_blank','width=400,height=500,menubar=no,toolbar=no');
}
function openWindow(){
var mywindow=confirm("是否打开新窗口");
if (mywindow==true){
NewWindow();
}
else{
None;
}
}
</script>
</head>
<body>
<input type="button" value="新窗口打开网站" onclick="openWindow()" />
</body>
</html>